Dan,

The Huddlestons weigh 5 ounces, according to huddlestondeluxe.com. I do not believe that the website differentiates between rofs 0, 5, 12, or 16. The rof 0 should be the lightest. Due to internal weights, rof 5 should be the next heaviest, rof 12 the next heaviest, and rof 16 the heaviest.

Ebay currently has a number of these baits for sale, with some "buy it now" for $39.99.

Hope this helps.